:root{
    --ink:#0A0A0A;
    --ink-soft:#141414;
    --paper:#FFFFFF;
    --muted:#6b6b6b;
    --muted-d:#9a9a9a;        /* muted su fondo scuro */
    --line:#e6e6e6;           /* hairline su chiaro */
    --line-d:rgba(255,255,255,.16); /* hairline su scuro */
    --wa:#25D366;
    --maxw:1160px;
    font-synthesis-weight:none;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);
    background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
  a{color:inherit;text-decoration:none}
  h1,h2,h3,.brand,.num{font-family:'Space Grotesk','Inter',sans-serif}
  .eyebrow{font-size:12px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}
  .on-dark .eyebrow{color:var(--muted-d)}

  /* buttons */
  .btn{display:inline-flex;align-items:center;gap:9px;font-family:inherit;font-weight:600;font-size:15px;
    cursor:pointer;border:1.5px solid var(--ink);background:var(--ink);color:#fff;padding:13px 22px;border-radius:2px;
    transition:background .15s,color .15s,transform .15s}
  .btn:hover{transform:translateY(-1px)}
  .btn.inv{background:#fff;color:var(--ink);border-color:#fff}
  .btn.ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
  .btn.ghost:hover{background:var(--ink);color:#fff}
  .on-dark .btn{background:#fff;color:var(--ink);border-color:#fff}
  .on-dark .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
  .on-dark .btn.ghost:hover{background:#fff;color:var(--ink);border-color:#fff}

  /* ===== HEADER ===== */
  header{position:sticky;top:0;z-index:50;background:rgba(10,10,10,.9);backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line-d)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:62px}
  .brand{color:#fff;font-weight:700;font-size:16px;letter-spacing:.12em;text-transform:uppercase;
    display:flex;align-items:center;gap:10px}
  .brand .mk{width:20px;height:20px;flex:0 0 auto}
  .nav-links{display:flex;align-items:center;gap:10px}
  .nav .btn{padding:9px 16px;font-size:13.5px}
  .nav .link{display:none;color:#cfcfcf;font-size:13px;letter-spacing:.04em;padding:8px 6px}
  .nav .link:hover{color:#fff}
  @media(min-width:780px){.nav .link{display:inline}}

  /* ===== HERO ===== */
  .hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
  .stars{position:absolute;inset:0;pointer-events:none;opacity:.6;
    background-image:
      radial-gradient(1.2px 1.2px at 18% 28%, #fff, transparent),
      radial-gradient(1px 1px at 62% 18%, #fff, transparent),
      radial-gradient(1.3px 1.3px at 78% 52%, #fff, transparent),
      radial-gradient(1px 1px at 40% 66%, #fff, transparent),
      radial-gradient(1.1px 1.1px at 88% 30%, #fff, transparent),
      radial-gradient(1px 1px at 30% 86%, #fff, transparent);
    background-repeat:no-repeat}
  .hero-grid{position:relative;z-index:2;display:grid;gap:36px;padding:64px 0 72px}
  @media(min-width:940px){.hero-grid{grid-template-columns:1.1fr .9fr;align-items:center;padding:90px 0 96px}}
  .hero h1{font-size:clamp(40px,7.5vw,76px);font-weight:700;line-height:.98;letter-spacing:-.02em;
    text-transform:uppercase;margin:20px 0}
  .hero .sub{font-size:clamp(16px,2.2vw,19px);color:#cfcfcf;max-width:46ch}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
  .hero-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:34px;padding-top:22px;
    border-top:1px solid var(--line-d);font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-d)}

  /* satellite signal animation (monoline) */
  .signal{width:100%;max-width:380px;margin:0 auto;aspect-ratio:1/1}
  .signal svg{width:100%;height:100%;overflow:visible}
  .ln{stroke:#fff;fill:none}
  .orbit{stroke:rgba(255,255,255,.22);stroke-width:1.2}
  .beam{stroke:#fff;stroke-width:1.6;stroke-dasharray:5 8;animation:dash 1.6s linear infinite}
  .sat-ln{stroke:#fff;stroke-width:1.6;fill:none}
  .ground-dot{fill:#fff}
  .ping{fill:none;stroke:#fff;stroke-width:1.4;transform-origin:center;animation:ping 2.6s ease-out infinite}
  .packet{fill:#fff;animation:travel 2.6s ease-in-out infinite}
  @keyframes dash{to{stroke-dashoffset:-26}}
  @keyframes ping{0%{opacity:.7;r:5}100%{opacity:0;r:30}}
  @keyframes travel{0%{opacity:0}12%{opacity:1}88%{opacity:1}100%{opacity:0;transform:translate(-116px,150px)}}
  @media (prefers-reduced-motion:reduce){.beam,.ping,.packet{animation:none}}

  /* ===== SECTIONS ===== */
  .band{padding:84px 0}
  .band.dark{background:var(--ink);color:#fff}
  .head{max-width:64ch;margin-bottom:46px}
  .head h2{font-size:clamp(28px,4.4vw,44px);font-weight:700;letter-spacing:-.02em;line-height:1.05;
    text-transform:uppercase;margin:14px 0 12px}
  .head p{color:var(--muted);font-size:17px}
  .dark .head p{color:var(--muted-d)}

  /* feature cards (monoline) */
  .cols{display:grid;gap:0;border-top:1px solid var(--line)}
  @media(min-width:760px){.cols{grid-template-columns:repeat(3,1fr)}}
  .col{padding:34px 0;border-bottom:1px solid var(--line)}
  @media(min-width:760px){
    .col{padding:40px 32px;border-bottom:none;border-right:1px solid var(--line)}
    .col:first-child{padding-left:0}
    .col:last-child{border-right:none;padding-right:0}
  }
  .col .ico{width:46px;height:46px;color:var(--ink);margin-bottom:20px}
  .col h3{font-size:20px;font-weight:600;text-transform:uppercase;letter-spacing:.01em;margin-bottom:10px}
  .col p{color:var(--muted);font-size:15.5px}

  /* per chi — split with monoline scene */
  .split{display:grid;gap:48px;align-items:center}
  @media(min-width:900px){.split{grid-template-columns:1fr 1fr}}
  .checklist{display:grid;gap:0;margin-top:6px}
  .check{display:flex;gap:16px;align-items:flex-start;padding:20px 0;border-bottom:1px solid var(--line-d)}
  .check:first-child{border-top:1px solid var(--line-d)}
  .check .x{flex:0 0 auto;width:22px;height:22px;color:#fff}
  .check b{font-weight:600}
  .check span.t{color:var(--muted-d);font-size:15.5px}
  .scene{width:100%;color:#fff}
  .scene svg{width:100%;height:auto}

  /* steps */
  .steps{display:grid;gap:0;border-top:1px solid var(--line)}
  @media(min-width:820px){.steps{grid-template-columns:repeat(3,1fr)}}
  .step{padding:34px 0;border-bottom:1px solid var(--line)}
  @media(min-width:820px){.step{padding:40px 34px;border-bottom:none;border-right:1px solid var(--line)}
    .step:first-child{padding-left:0}.step:last-child{border-right:none;padding-right:0}}
  .num{font-size:46px;font-weight:700;letter-spacing:-.03em;line-height:1;color:var(--ink);
    -webkit-text-stroke:1.5px var(--ink);color:transparent;margin-bottom:16px}
  .step h3{font-size:19px;font-weight:600;text-transform:uppercase;margin-bottom:8px}
  .step p{color:var(--muted);font-size:15.5px}

  /* CTA band */
  .cta-band{text-align:center}
  .cta-band h2{font-size:clamp(32px,6vw,60px);font-weight:700;text-transform:uppercase;letter-spacing:-.02em;line-height:1;margin-bottom:18px}
  .cta-band p{color:var(--muted-d);font-size:18px;max-width:48ch;margin:0 auto 34px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
  .cta-band .phone{margin-top:26px;font-size:14px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-d)}
  .cta-band .phone a{color:#fff;border-bottom:1px solid var(--line-d);padding-bottom:2px}

  /* footer */
  footer{background:var(--ink);color:var(--muted-d);border-top:1px solid var(--line-d);padding:54px 0 46px;font-size:14.5px}
  .foot-grid{display:grid;gap:26px}
  @media(min-width:760px){.foot-grid{grid-template-columns:1.6fr 1fr 1fr}}
  footer .brand{color:#fff;margin-bottom:14px}
  footer h4{color:#fff;font-size:12px;letter-spacing:.18em;text-transform:uppercase;margin-bottom:14px}
  footer a:hover{color:#fff}
  footer p{margin-bottom:6px}
  .foot-legal{margin-top:38px;padding-top:20px;border-top:1px solid var(--line-d);
    display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:space-between;font-size:12.5px;color:#777}

  /* ===== GALLERY ===== */
  .gallery-grid{display:grid;gap:14px;grid-template-columns:repeat(2,1fr)}
  @media(min-width:760px){.gallery-grid{grid-template-columns:repeat(4,1fr);gap:18px}}
  .shot{position:relative;display:block;width:100%;aspect-ratio:3/4;overflow:hidden;
    border:1px solid var(--line);background:#f2f2f2;cursor:pointer;padding:0}
  .shot img{width:100%;height:100%;object-fit:cover;display:block;
    filter:grayscale(1) contrast(1.02);transition:filter .4s ease,transform .5s ease}
  .shot:hover img,.shot:focus-visible img{filter:grayscale(0);transform:scale(1.04)}
  .shot figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 12px 12px;
    font-size:12.5px;line-height:1.35;color:#fff;text-align:left;
    background:linear-gradient(transparent,rgba(10,10,10,.82));
    opacity:0;transform:translateY(6px);transition:opacity .3s,transform .3s}
  .shot:hover figcaption,.shot:focus-visible figcaption{opacity:1;transform:none}
  .shot .plus{position:absolute;top:10px;right:10px;width:30px;height:30px;border-radius:50%;
    background:rgba(255,255,255,.92);color:#0A0A0A;display:grid;place-items:center;font-size:18px;
    opacity:0;transition:opacity .3s}
  .shot:hover .plus,.shot:focus-visible .plus{opacity:1}

  /* ===== LIGHTBOX ===== */
  .lb{position:fixed;inset:0;z-index:120;background:rgba(8,8,8,.97);display:none;
    flex-direction:column;opacity:0;transition:opacity .25s ease}
  .lb.open{display:flex;opacity:1}
  .lb-bar{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;color:#fff;flex:0 0 auto}
  .lb-count{font-family:'Space Grotesk',sans-serif;font-size:14px;letter-spacing:.12em;color:#cfcfcf}
  .lb-close{background:none;border:0;color:#fff;cursor:pointer;width:42px;height:42px;border-radius:50%;
    display:grid;place-items:center;transition:background .2s}
  .lb-close:hover{background:rgba(255,255,255,.12)}
  .lb-stage{position:relative;flex:1 1 auto;overflow:hidden;touch-action:pan-y}
  .lb-track{display:flex;height:100%;will-change:transform;transition:transform .38s cubic-bezier(.4,0,.2,1)}
  .lb-track.dragging{transition:none}
  .lb-slide{flex:0 0 100%;height:100%;display:grid;place-items:center;padding:0 16px}
  .lb-slide img{max-width:92vw;max-height:74vh;object-fit:contain;
    box-shadow:0 30px 80px -30px rgba(0,0,0,.8);user-select:none;-webkit-user-drag:none}
  .lb-cap{flex:0 0 auto;color:#cfcfcf;text-align:center;font-size:14.5px;padding:14px 20px 22px}
  .lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:50px;height:50px;border-radius:50%;
    border:1px solid rgba(255,255,255,.3);background:rgba(20,20,20,.5);color:#fff;cursor:pointer;
    display:grid;place-items:center;transition:background .2s,border-color .2s;z-index:2}
  .lb-nav:hover{background:rgba(255,255,255,.16);border-color:#fff}
  .lb-prev{left:14px}.lb-next{right:14px}
  @media(max-width:640px){.lb-nav{width:42px;height:42px}.lb-prev{left:8px}.lb-next{right:8px}}

  /* WhatsApp FAB (mobile) */
  .fab{position:fixed;right:18px;bottom:18px;z-index:60;background:var(--wa);color:#fff;width:56px;height:56px;
    border-radius:50%;display:grid;place-items:center;box-shadow:0 8px 22px rgba(37,211,102,.45)}
  @media(min-width:940px){.fab{display:none}}

  :focus-visible{outline:2px solid var(--wa);outline-offset:3px}

/* ===== MENU DROPDOWN ===== */
.dd{position:relative}
.dd-menu{position:absolute;top:100%;left:0;min-width:540px;background:#0f0f0f;border:1px solid var(--line-d);padding:18px 20px;display:grid;grid-template-columns:repeat(2,1fr);gap:2px 30px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.18s;z-index:60;border-radius:6px;box-shadow:0 24px 60px -24px rgba(0,0,0,.7)}
.dd:hover .dd-menu,.dd:focus-within .dd-menu{opacity:1;visibility:visible;transform:none}
.dd-col h5{color:#fff;font-size:11px;letter-spacing:.16em;text-transform:uppercase;margin:10px 0 5px;font-family:'Space Grotesk',sans-serif}
.dd-menu a{display:block;color:#bdbdbd;font-size:13px;padding:4px 0;line-height:1.3}
.dd-menu a:hover{color:#fff}
.dd-all{grid-column:1/-1;border-top:1px solid var(--line-d);margin-top:10px;padding-top:10px!important;color:#fff!important;font-weight:600}
/* ===== TABELLE ===== */
.tbl-wrap{overflow-x:auto;margin:0}
.tbl{width:100%;border-collapse:collapse;font-size:15px;background:#fff;border:1px solid var(--line)}
.tbl caption{text-align:left;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:15px;color:var(--muted);padding:0 0 12px}
.tbl th,.tbl td{padding:12px 14px;border:1px solid var(--line);text-align:left;vertical-align:top}
.tbl thead th{background:var(--ink);color:#fff;font-weight:600;text-transform:uppercase;font-size:12.5px;letter-spacing:.04em}
.tbl tbody tr:nth-child(even){background:#faf9f6}
.tbl td:first-child{font-weight:600}
/* ===== INFOGRAFICHE ===== */
.info{margin:0 0 22px;border:1px solid var(--line);border-radius:12px;padding:18px;background:#fff}
.info figcaption{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:14px;margin-bottom:12px;color:var(--ink)}
.ig{width:100%;height:auto;color:var(--ink)}
.ig-t{font-size:9px;fill:var(--muted);font-family:Inter,sans-serif}
.scene-ig{stroke:var(--ink);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.beam-ig{stroke-dasharray:5 7;animation:dashmove 1.6s linear infinite}
@keyframes dashmove{to{stroke-dashoffset:-24}}
.orbiter{animation:spin 9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.bars{display:grid;gap:12px}
.bar{display:grid;grid-template-columns:90px 1fr auto;align-items:center;gap:12px;font-size:13.5px}
.bar-l{color:var(--muted);font-weight:600}
.bar-t{background:#eee;border-radius:999px;height:14px;overflow:hidden}
.bar-f{height:100%;background:var(--ink);border-radius:999px;animation:grow 1.1s cubic-bezier(.4,0,.2,1) forwards}
@keyframes grow{from{width:0}}
.bar-v{font-weight:600;white-space:nowrap}
.steps-ig{list-style:none;display:grid;gap:14px}
.steps-ig li{display:flex;gap:14px;align-items:flex-start;font-size:14.5px}
.st-n{flex:0 0 auto;width:28px;height:28px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:14px}
@media (prefers-reduced-motion:reduce){.beam-ig,.orbiter,.bar-f{animation:none}.bar-f{width:var(--w)}}
/* ===== LAYOUT GUIDE ===== */
.guide-top{padding-bottom:24px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--muted);text-decoration:underline}
.crumb a:hover{color:var(--ink)}
.g-h1{font-size:clamp(28px,5vw,46px);font-weight:700;letter-spacing:-.02em;line-height:1.05;text-transform:uppercase;margin:12px 0 12px}
.g-lede{font-size:18px;color:var(--muted);max-width:60ch}
.g-body{padding-top:24px}
.g-wrap{display:grid;gap:40px}
@media(min-width:900px){.g-wrap{grid-template-columns:1.6fr .9fr;align-items:start}}
.g-main h2{font-size:23px;font-weight:600;text-transform:uppercase;letter-spacing:-.01em;margin:28px 0 10px}
.g-main .g-sec:first-child h2{margin-top:0}
.g-main p{font-size:16.5px;margin-bottom:12px}
.note-line{font-size:13.5px;color:var(--muted);border-left:3px solid var(--line);padding:4px 0 4px 14px;margin:18px 0}
.g-aside{position:sticky;top:84px}
.g-cta{border:1px solid var(--line);border-radius:14px;padding:20px;background:#faf9f6;margin-top:6px}
.g-cta p{font-weight:600;margin-bottom:12px}
.g-cta .btn{width:100%;justify-content:center;margin-bottom:10px}
.g-table{padding-top:0}
.faq-list{display:grid;gap:10px}
.faq{border:1px solid var(--line);border-radius:10px;padding:4px 16px;background:#fff}
.faq summary{cursor:pointer;font-weight:600;padding:12px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:10px;font-size:20px;color:var(--muted)}
.faq[open] summary::after{content:"–"}
.faq div{padding:0 0 14px;color:var(--muted);font-size:15.5px}
.related-sec{padding-top:0}
.rel-grid{display:grid;gap:12px}
@media(min-width:680px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{display:flex;justify-content:space-between;align-items:center;gap:10px;border:1px solid var(--line);border-radius:10px;padding:16px;font-weight:600;font-size:15px;transition:.15s}
.rel-card:hover{background:var(--ink);color:#fff}
/* ===== GUIDE STRIP / HUB ===== */
.guide-strip{background:#faf9f6;border-top:1px solid var(--line)}
.gs-grid{display:grid;gap:24px}
@media(min-width:760px){.gs-grid{grid-template-columns:repeat(5,1fr)}}
.gs-col h4{font-size:12px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px;font-family:'Space Grotesk',sans-serif}
.gs-col ul{list-style:none;display:grid;gap:7px}
.gs-col a{font-size:14px;color:var(--muted)}
.gs-col a:hover{color:var(--ink)}
.hub-cat{margin-bottom:40px}
.hub-cat h2{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:16px;font-family:'Space Grotesk',sans-serif}
.hub-grid{display:grid;gap:16px}
@media(min-width:680px){.hub-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1000px){.hub-grid{grid-template-columns:repeat(4,1fr)}}
.hub-card{border:1px solid var(--line);border-radius:14px;padding:22px;transition:.15s;display:flex;flex-direction:column;gap:8px}
.hub-card:hover{box-shadow:0 18px 40px -28px rgba(11,20,55,.5);transform:translateY(-2px)}
.hub-card h3{font-size:17px;font-weight:600}
.hub-card p{font-size:13.5px;color:var(--muted);flex:1}
.hub-go{font-weight:600;font-size:14px}